TheQRCode.io
REMOTE · MCP.THEQRCODE.IO · SCANNED SEP 28
Free styled QR codes, no key: URL, WiFi, contact, text, email. API key adds saved codes + analytics.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability58
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 765 tokens (~255/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management60
- Stability observed for 18 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the TheQRCode.io MCP server?
TheQRCode.io is a hosted endpoint at https://mcp.theqrcode.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.theqrcode.io
claude mcp add --transport http io-theqrcode-qr-code-generator 'https://mcp.theqrcode.io/mcp'
{
"mcpServers": {
"io-theqrcode-qr-code-generator": {
"url": "https://mcp.theqrcode.io/mcp"
}
}
} {
"servers": {
"io-theqrcode-qr-code-generator": {
"type": "http",
"url": "https://mcp.theqrcode.io/mcp"
}
}
} [mcp_servers.io-theqrcode-qr-code-generator] url = "https://mcp.theqrcode.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-theqrcode-qr-code-generator": {
"type": "remote",
"url": "https://mcp.theqrcode.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-theqrcode-qr-code-generator --url 'https://mcp.theqrcode.io/mcp' --transport streamable-http
mcp_servers:
io-theqrcode-qr-code-generator:
url: "https://mcp.theqrcode.io/mcp" {
"McpServers": {
"io-theqrcode-qr-code-generator": {
"Transport": "http",
"Url": "https://mcp.theqrcode.io/mcp"
}
}
} assistant mcp add io-theqrcode-qr-code-generator -t streamable-http -u 'https://mcp.theqrcode.io/mcp'
{
"mcpServers": {
"io-theqrcode-qr-code-generator": {
"type": "http",
"url": "https://mcp.theqrcode.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 28 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 0
- Server version: 1.3.0 → 1.4.0 functional
- “generate_qr_code” added an optional parameter “captionFont” cosmetic
- 26 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Sept 26 −1
- Tool “generate_qr_code” rewrote its description, which is the text the model reads security
- Schema quality: 163 → 233 ▼ functional
- Server version: 1.2.0 → 1.3.0 functional
- “generate_qr_code” added an optional parameter “caption” cosmetic
- “generate_qr_code” added an optional parameter “cornerStyle” cosmetic
- “generate_qr_code” added an optional parameter “dotStyle” cosmetic
- “generate_qr_code” added an optional parameter “format” cosmetic
- “generate_qr_code” added an optional parameter “frameStyle” cosmetic
- “generate_qr_code” reworded the description of “type” cosmetic
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 28 Sept 2026 · Probed https://mcp.theqrcode.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.theqrcode.io | CN=YR1,O=Let's Encrypt,C=US | 12 Aug 2026 | 10 Nov 2026 | RSA 4096 | SHA256-RSA | 6d385e966125c4fbe529407140791632574 |
| SANs: mcp.theqrcode.io | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.theqrcode.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| theqrcode.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.theqrcode.io/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.theqrcode.io/mcp | HTTPS enforced | 301 | https://mcp.theqrcode.io/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
generate_qr_code ~597
Generate a QR code image. Use this whenever a user asks to create, make, or generate a QR code for a URL, website, WiFi network, contact card, email, or text. Returns a hosted image URL and a base64 data URL for inline display. Colour, size, dot and corner styling, frames and captions are free on every plan and with no key at all — offer them freely. When authenticated, the QR code is saved to the user's account and svg/pdf output becomes available.
| Name | Type | Req | Description |
|---|---|---|---|
| caption | string | – | Short text rendered under the code, e.g. 'Scan for the menu'. Forces a frame to be drawn, because the text needs a band to sit on. Free on every plan. |
| captionFont | string | – | Typeface for the caption. Defaults to 'inter' (bold sans). 'pacifico' and 'dancing-script' are scripts, 'permanent-marker' is handwritten, 'playfair-display' and 'roboto-slab' are serifs. Ignored wit… |
| content | string | yes | The data to encode. Examples: 'https://example.com' for url, 'WIFI:T:WPA;S:MyNetwork;P:secret;;' for wifi, plain text for text type. |
| cornerStyle | string | – | Shape of the three large corner squares. Free on every plan. |
| darkColor | string | – | Hex color for dark QR modules, e.g. '#1a1a1a'. Defaults to '#000000'. |
| dotStyle | string | – | Shape of the QR modules. Free on every plan, keyless sessions included. |
| format | string | – | Output format, returned as a data URL of that type. Defaults to 'png'. svg and pdf REQUIRE an API key: vector and PDF are the most expensive render path, so they sit behind a per-key rate limit rathe… |
| frameStyle | string | – | Draw a frame around the code. 'square' means no frame. Free on every plan. |
| lightColor | string | – | Hex color for the background, e.g. '#ffffff'. Defaults to '#FFFFFF'. |
| name | string | – | Display name when saving via the authenticated API. If omitted, a name is derived from type and content. |
| size | integer | – | Output image size in pixels (64–1024). Defaults to 256. |
| type | string | yes | QR code type. Use 'url' for web links, 'wifi' for network credentials (format: WIFI:T:WPA;S:<ssid>;P:<password>;;), 'contact' for vCard data, 'text' for arbitrary strings, 'email' for email addresses… |
No output schema declared.
No examples provided.
get_analytics ~82
Get scan analytics for the authenticated user's QR codes. Optionally filter to a specific QR code by ID. Requires an authenticated API key (Developer plan).
| Name | Type | Req | Description |
|---|---|---|---|
| qrCodeId | string | – | Filter analytics to a specific QR code ID. Omit for account-wide totals. |
| timeRange | string | – | Time range for analytics data. Defaults to '30d'. |
No output schema declared.
No examples provided.
list_qr_codes ~86
List QR codes saved to the authenticated user's account. Supports pagination and filtering by type. Requires an authenticated API key (Developer plan).
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Number of QR codes per page (1–100). Defaults to 20. |
| page | integer | – | Page number for pagination. Defaults to 1. |
| type | string | – | Filter by QR code type. |
No output schema declared.
No examples provided.
What is the TheQRCode.io MCP server?
TheQRCode.io is an MCP server listed in the public MCP registry as io.theqrcode/qr-code-generator. Free styled QR codes, no key: URL, WiFi, contact, text, email. API key adds saved codes + analytics. This page covers its hosted endpoint (https://mcp.theqrcode.io/mcp).
Is the TheQRCode.io MCP server safe to use?
TheQRCode.io scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the TheQRCode.io MCP server expose?
TheQRCode.io exposes 3 tools: generate_qr_code, list_qr_codes, get_analytics. Their descriptions and schemas cost roughly 765 tokens of context every time the server is loaded.
Does the TheQRCode.io MCP server require authentication?
No. We connected to TheQRCode.io without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the TheQRCode.io MCP server still maintained?
TheQRCode.io is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.